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Synthesis of the active hormone formed from vitamin D or its precursor in skin.
Approximately 1 pound (0.45 kg) of ground elk meat formed into patties; note the relatively small fa
Oceanic Crust Has a Well-defined Internal Structure
This chart illustrates the “drip down” model of government. In this, politics is formed by the soc
A mother dies, a father loses his leg—such calamities shattered poor urban families. Orphaned street
Common skin signs are often evidence of an illness or disorder. A crust is a dry, serous or ...